mpd: Update to 0.18.20

Signed-off-by: Ted Hess <thess@kitschensync.net>

sound/mpd/Makefile

@@ -8,12 +8,12 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=mpd
-PKG_VERSION:=0.18.16
-PKG_RELEASE:=2
+PKG_VERSION:=0.18.20
+PKG_RELEASE:=1
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
 PKG_SOURCE_URL:=http://www.musicpd.org/download/mpd/0.18/
-PKG_MD5SUM:=900657ff55726f4cc09a27eb7df57015
+PKG_MD5SUM:=88ba076000e13dbf094b3e32a6472944
 PKG_MAINTAINER:=Ted Hess <thess@kitschensync.net>
 
 PKG_LICENSE:=GPL-2.0
@@ -205,9 +205,9 @@ endif
 
 define Package/mpd/install
 	$(INSTALL_DIR) $(1)/usr/bin
-	$(CP) $(PKG_INSTALL_DIR)/usr/bin/mpd $(1)/usr/bin/
+	$(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/bin/mpd $(1)/usr/bin/
 	$(INSTALL_DIR) $(1)/etc
-	$(CP) $(PKG_BUILD_DIR)/doc/mpdconf.example $(1)/etc/mpd.conf
+	$(INSTALL_CONF) $(PKG_BUILD_DIR)/doc/mpdconf.example $(1)/etc/mpd.conf
 	$(INSTALL_DIR) $(1)/etc/init.d
 	$(INSTALL_BIN) ./files/mpd.init $(1)/etc/init.d/mpd
 endef